I have what I think is a really good Critcal x Northern Lights Autoflower grow going. There has always been some discoloration on the leaves. I don’t see any spider mites. Can anyone explain the discoloration. Photo attached.
I’m no expert but that looks like you have thrips. Do you have a magnifying glass?
I would say bugs because of the spotting so look at it the leafs under magnification and check for bugs. If no bugs it could be ph or alot of things.
I personally have used the garlic oil and pepper oil foliar spray with success. I have also had succes with diatomaceous earth and the neem works too. I’ve never personally used spinosad or pyrethrin though so I can not speak to its effectiveness. Hope this helps.
Nice knowledge drop